Dear Colleagues,
We would like to invite you to the following seminar that will take place
on May 26 at 14.30 at the Math Department of Padova.
The seminar will be held in person and online via the Zoom platform.
The organizers,
Alessandra Bianchi, Giorgia Callegaro, Marco Formentin
_____________________________________________________
Seminars in Probability and Finance
*Speaker:* Alice Callegaro (TU Munich and Johannes-Gutenberg Universität
Mainz)
*Title:* Survival and complete convergence for a branching annihilating
random walk
*Date and time*: Friday, May 26, 2023 at 14.30
*Place*: room 2BC30 at the Department of Mathematics, University of Padova
*Zoom link:* https://unipd.zoom.us/j/88429828028 (Meeting ID 884 2982
8028 )
available also on the webpage https://www.math.unipd.it/~bianchi/seminari/
*Abstract:* We study a branching annihilating random walk (BARW) in which
particles move on the discrete lattice in discrete generations. Each
particle produces a poissonian number of offspring which independently move
to a uniformly chosen site within a fixed distance from their parent's
position. Whenever a site is occupied by at least two particles, all the
particles at that site are annihilated. This can be thought of as a very
strong form of local competition and implies that the system is not
monotone. For certain ranges of the parameters of the model we show that
the system dies out almost surely or, on the other hand, survives with
positive probability. In an even more restricted parameter range we
strengthen the survival results to complete convergence with a non-trivial
invariant measure. A central tool in the proof is comparison with oriented
percolation on a coarse-grained level, using carefully tuned density
profiles which expand in time and are reminiscent of discrete travelling
wave solutions. Based on a joint work with Matthias Birkner (JGU Mainz),
Jiří Černý (University of Basel), Nina Gantert (TU Munich) and Pascal
Oswald (University of Basel/JGU Mainz).
--
Alessandra Bianchi
Dip. di Matematica
Università di Padova
Via Trieste, 63 - 35121 Padova, Italy
phone: +39 049 827 14 06
fax: +39 049 827 14 28
e-mail: bianchi(a)math.unipd.it
http://www.math.unipd.it/~bianchi/
XKDD 2023 - Call for Papers
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5th ECML-PKDD International Workshop on eXplainable Knowledge Discovery in Data Mining
-------------------------------------------------------------------------
Torino, 18th September 2023 http://xkdd2023.isti.cnr.it/
(co-located with the ECML-PKDD 2023 conference https://2023.ecmlpkdd.org/)
CONTEXT & OBJECTIVES
In the past decade, machine learning based decision systems have been widely used in a wide range of application domains, like credit score, insurance risk, and health monitoring, in which accuracy is of the utmost importance.
Although the support of these systems has an immense potential to improve the decision in different fields, their use may present ethical and legal risks, such as codifying biases, jeopardizing transparency and privacy, and reducing accountability.
Unfortunately, these risks arise in different applications. They are made even more serious and subtly by the opacity of recent decision support systems, which are often complex and their internal logic is usually inaccessible to humans.
Nowadays, most Artificial Intelligence (AI) systems are based on Machine Learning algorithms.
The relevance and need for ethics in AI are supported and highlighted by various initiatives arising from the researches to provide recommendations and guidelines in the direction of making AI-based decision systems explainable and compliant with legal and ethical issues.
These include the EU's GDPR regulation which introduces, to some extent, a right for all individuals to obtain ``meaningful explanations of the logic involved'' when automated decision making takes place, the ``ACM Statement on Algorithmic Transparency and Accountability'', the Informatics Europe's ``European Recommendations on Machine-Learned Automated Decision Making'' and ``The ethics guidelines for trustworthy AI'' provided by the EU High-Level Expert Group on AI.
The challenge to design and develop trustworthy AI-based decision systems is still open and requires a joint effort across technical, legal, sociological and ethical domains.
The purpose of XKDD, eXaplaining Knowledge Discovery in Data Mining, is to encourage principled research that will lead to the advancement of explainable, transparent, ethical and fair data mining and machine learning.
Also, this year the workshop will seek submissions addressing uncovered important issues in specific fields related to eXplainable AI (XAI), such as XAI for a more Social and Responsible AI, XAI as a tool to align AI with human values, XAI for Outlier and Anomaly Detection, quantitative and qualitative evaluation of XAI approaches, and XAI case studies.
The workshop will seek top-quality submissions related to ethical, fair, explainable and transparent data mining and machine learning approaches.
Papers should present research results in any of the topics of interest for the workshop, as well as tools and promising preliminary ideas.
XKDD asks for contributions from researchers, academia and industries, working on topics addressing these challenges primarily from a technical point of view but also from a legal, ethical or sociological perspective.
Topics of interest include, but are not limited to:
TOPICS
- XAI for Social AI
- XAI for Responsible AI
- XAI to Align AI with Human Values
- XAI for Outlier and Anomaly Detection
- Quantitative and Qualitative Evaluation of XAI approaches
- Transparent-by Design Models
- XAI Case studies
- XAI for Privacy-Preserving Systems
- XAI for Federated Learning
- XAI for Time Series based Approaches
- XAI for Graph based Approaches
- XAI for Visualization
- XAI in Human-Machine Interaction
- XAI in Human-in-the-Loop Interactions
- Counterfactual Explanations
- Human-Model Interfaces for XAI approaches
- Explainable Artificial Intelligence (XAI)
- Interpretable Machine Learning
- Transparent Data Mining
- XAI for Fairness Checking
- Explanation, Accountability and Liability from an Ethical and Legal Perspective
Also, the XKDD 2023 edition is co-organized with DynXAI - Explainable Artificial Intelligence: From Static to Dynamic.
SUBMISSION & PUBLICATION
All contributions will be reviewed by at least three members of the Program Committee. As regards size, contributions can be up to is 14 pages references excluded in LNCS format, i.e., the ECML PKDD 2023 submission format. All papers should be written in English. The following kinds of submissions will be considered: research papers, tool papers, case study papers and position papers. Detailed information on the submission procedure is available at the workshop web page:
http://xkdd2023.isti.cnr.it/
If pandemic conditions permit, the workshop will be held in an on-site format. Recordings of the lectures will be made available to all registered participants.
Accepted papers will be published after the workshop by Springer in a volume of Lecture Notes in Computer Science (LNCS). The condition for inclusion in the post-proceedings is that at least one of the co-authors registered to ECML-PKDD and presented the paper at the workshop. Pre-proceedings will be available online before the workshop. We also allow accepted papers to be presented without publication in the conference proceedings if the authors choose to do so. Some of the full paper submissions may be accepted as short papers after review by the Program Committee. A special issue of a relevant international journal with extended versions of selected papers is under consideration.
The submission link is: https://cmt3.research.microsoft.com/ECMLPKDDworkshop2023/Track/16/Submissio…
The XKDD 2023 workshop is co-organized and will be held jointly the DynXAI 2023 workshop, please visit https://sites.google.com/view/dynxai-ecmlpkdd-2023/ for the detailed CfP.
IMPORTANT DATES
Paper Submission deadline: June 20, 2023
Accept/Reject Notification: July 13, 2023
Camera-ready deadline: July 31, 2023
Workshop: September 18, 2023
PROGRAM CO-CHAIRS
* Przemyslaw Biecek, Warsaw University of Technology, Poland
* Tania Cerquitelli, Politecnico di Torino, Torino, Italy
* Riccardo Guidotti, University of Pisa, Italy
* Francesca Naretto, Scuola Normale Superiore, Pisa, Italy
* Daniele Regoli, Instesa Sanpaolo, Italy
PROGRAM COMMITEE
* Miguel Couceiro, Università de Lorraine, France
* Alessandro Castelnovo, Intesa Sanpaolo, Italy
* Riccardo Crupi, Intesa Sanpaolo, Italy
* Josep Domingo-Ferrer, Universitat Rovira i Virgili, Spain
* Françoise Fessant, Orange Labs, France
* Salvatore Greco, Politecnico di Torino, Italy
* Andreas Holzinger, Medical University of Graz, Austria
* Paulo Lisboa, Liverpool John Moores University, UK
* Marcin Luckner, Warsaw University of Technology, Poland
* Amedeo Napoli, CNRS, France
* John Mollas, Aristotle University of Thessaloniki, Greece
* Enea Parimbelli, University of Pavia, Italy
* Francesca Pratesi, ISTI-CNR, Italy
* Roberto Prevete, University of Napoli, Italy
* Antonio Rago, Imperial College London, UK
* Eliana Pastor, Politecnico di Torino, Italy
* Jan Ramon, Inria, France
* Xavier Renard, AXA, France
* Mahtab Sarvmaili, Dalhousie University, Canada
* Udo Schlegel, Konstanz University, Germany
* Mattia Setzu, University of Pisa, Italy
* Dominik Slezak, University of Warsaw, Poland
* Myra Spiliopoulou, University Magdeburg, Germany
* Francesco Spinnato, Scuola Normale Superiore, Italy
* Grigorios Tsoumakas, Aristotle University of Thessaloniki, Greece
* Genoveva Vargas-Solar, CNRS, LIRIS, France
* Albrecht Zimmermann, Università de Caen, France
INVITED SPEAKERS
* Andreas Theissler, Aalen University of Applied Sciences, Aalen, Germany
* Dino Pedreschi, University of Pisa, Italy (tentative)
STEERING COMMITTEE
* Riccardo Guidotti, University of Pisa
* Anna Monreale, University of Pisa
* Salvatore Rinzivillo, ISTI-CNR, Pisa
CONTACT
All inquiries should be sent to francesca.naretto(a)di.unipi.it, riccardo.guidotti(a)unipi.it
Prima di stampare, pensa all'ambiente ** Think about the environment before printing
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***
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Ricevo e inoltro, scusandomi per ricezioni multiple.
Giacomo Aletti
=================================
We are delighted to announce the workshop 'Random Games and Machine
Learning' which will take place
in Prato 17-20 June 2023 (Monash Campus Prato), Italy. The list of
participants includes
Itai Arieli (Technion), Andrea Collevecchio (Monash University), Fabio
Coppini (Luiss), Tim Garoni (Monash University), Robert Griffiths (Monash
University), Kais Hamza (Monash University), Fima Klebaner (Monash
University), Gabor Lugosi (Pompeu Fabra), Hlafo Alfie Mimun
<https://sites.google.com/view/hlafoalfie-mimun/home-page?authuser=0>
(LUISS), Arkadi Predtetchinski (Maastricht), Matteo Quattropani (Sapienza
Università di Roma), Marco Scarsini (LUISS), Pierre Tarrès (NYU Shanghai),
Adrian Vetta (Montreal) , Fima Klebaner (Monash) Vladka Seckarova (Monash),
Fabio Coppini (Luiss).
The website (under construction) is
https://sites.google.com/view/randomgames2023/
The program will be published soon.
If you would like to participate, please contact us asap at
andrea.collevecchio(a)monash.edu
Thanks, Andrea (on behalf of the organizing committee)
--
-------------------------------
Giacomo Aletti, Full Professor (Probability Theory and Mathematical
Statistics)
Department of Environmental Science and Policy (ESP)
ADAMSS Centre (ex MIRIAM)
Advanced Applied Mathematical and Statistical Sciences
Università degli Studi di Milano
Via Saldini, 50
20133 Milano, Italy
Tel: +39-02-503.16158
Fax:+39-02-503.16090
Dear Colleagues,
the newly established research training group (RTG) "Coping with
Uncertainty in Dynamic Economies" at Bielefeld University has been
recently sponsored by the German Research Foundation (DFG) for up to 9
years.
In a first step, we will fund *12 doctoral students for four years of
study*. The positions are fully funded, at competitive levels (approx
40.000 Euro gross per year).
The RTG is an initiative of ten principal investigators from the Center
for Mathematical Economics and the Data Science Research Group at
Bielefeld University. Next to the well established core program of our
doctoral school BiGSEM (www.bigsem.de <http://www.bigsem.de>), students
will thus work in an excellent research environment on topics involving
uncertainty in its various aspects and their consequences for dynamic
economies. Also, the research training group holds strong ties with top
international researchers who will give specialized block courses and
summer schools.
_More information about the application procedure and deadlines can be
found:_
* at the inomics website
(https://inomics.com/program/12-phd-positions-in-the-new-research-training-g…)
* at Bielefeld’s official announcement webpage
(https://uni-bielefeld.hr4you.org/job/view/2457/research-positions-12-positi…).
Best wishes,
Giorgio Ferrari
Ho il piacere di comunicare che l’Università deli Studi di Napoli
Parthenope ospiterà la seconda edizione della International Fintech
Research Conference nei giorni 2 e 3 novembre 2023.
In allegato la locandina dell’evento.
Buongiorno. Annuncio il seguente seminario
Prof. Milto Hadjikyriakou (UCLan Cyprus)
16 Maggio 2023 11:00 - 12:00 Aula Seminari Dipartimento di Matematica, Pisa
Probability and Stochastic Analysis and Statistics <https://www.dm.unipi.it/categoria-evento/probability-stochastic-analysis-st…>
Titolo: Some new ordering results for parallel and series systems with dependent heterogeneous exponentiated Weibull components –
Abstract: In this work, ordering results are presented for parallel and series systems arising from dependent heterogeneous exponentiated Weibull components that share a common or different Archimedean copula(s). Particularly, sufficient conditions are provided under which the sample extremes are stochastically compared with respect to the usual stochastic order, the dispersive and the star-shaped order.
Tutti gli interessati sono invitati
Rita Giuliano
Dear Colleagues,
We would like to invite you to the following SPASS seminar, jointly
organized by UniPi, SNS, UniFi and UniSi:
*Effect of Transport Noise on Kelvin–Helmholtz Instability*
Silvia Morlacchi (Scuola Normale Superiore)
The seminar will take place on TUE, 16.5.2023 at 14:00 CET in Sala
Seminari, Dipartimento di Matematica, Pisa and streamed online at the link
below.
The organizers,
A. Agazzi, G. Bet, A. Caraceni, F. Grotto, G. Zanco
https://sites.google.com/unipi.it/spass
--------------------------------------------
*Abstract: *
*We numerically investigate the effect of transport noise on the Kelvin-
Helmholtz instability at the interface of two 2D fluids in a shear flow, to
test if the transport noise acts as a stabilizing factor.We exploit the
point vortex method as a numerical discretization of the fluid equation of
motion. We compare the results of the simulations in three different cases:
inviscid and viscous fluid without transport noise, and inviscid fluid
perturbed by transport noise. We find that when the transport noise is
modeled by a large number of low-intensity point vortices, a delay in the
temporal onset of the instability is present in the non viscous case, which
resembles what happens in the viscous case.Based on joint work with Franco
Flandoli and Andrea Papini.*
Dear all,
On Wednesday, May 17th, at 12h00 in Aula 2001 (change of usual time and place! Aula 2001 is on the top floor of the Math Department, close to the copy shop) at Roma Tor Vergata, RoMaDS (https://www.mat.uniroma2.it/~rds/about.php) will host Daniele Calandriello (Google Deep Mind, Paris) with the seminar
“Efficient exploration in stochastic environments"
Abstract:
Machine learning has seen an explosive growth recently, driven mostly by breakthroughs in classification and generative models. However ML applications in decision making settings are much more limited, where data collection is much higher and ML models must be sufficiently robust and accurate to deal with unforeseen consequences and avoid worst case scenarios. In this talk we will introduce some classical results for online decision making in stochastic linear spaces, with applications to active learning, bandit/bayesian optimization and deep learning. Starting from a rigorous analysis of the noise propagation we can formulate provably robust (i.e. no-regret) algorithms, and then create variants that can scale to modern ML data regimes without sacrificing safety. And if time suffice, we will highlight how these approaches inspired a new wave of exploration techniques to enable reinforcement learning agents to solve extremely long horizon tasks.
We encourage in-person partecipation. Should you be unable to come, there will be a Teams link on our webpage published before the start of the talk.
The seminar is part of the Excellence Project MatMod@TOV.
Next appointment will be 24.05.2023 - Rongfeng Sun (NUS, Singapore), see the details on next events at https://www.mat.uniroma2.it/~rds/events.php.
Dear all,
The 2nd BioInference conference (https://bioinference.github.io/2023) is taking place at the Pitt Rivers Museum at the University of Oxford on the 8th-9th June 2023.
Launched in 2022, BioInference aims to bring together researchers from across statistics and mathematical modelling who work with biological systems, and from all career stages, to foster discussions between the two communities and to prompt collaborations.
If you would like to attend the event in-person (tickets limited and on a first come first served basis), the tickets cost £70 and can be purchased here: https://fixr.co/event/bioinference-2023-conference-tickets-341678825.
If you wish to attend the event online, the tickets cost £20 and can be purchased here: https://fixr.co/event/bioinference-2023-conference-tickets-531133874.
The conference will combine contributed talks and poster sessions. Our confirmed talk and poster presentations include:
Talks:
* Jonas Arruda (University of Bonn) "An amortized approach to non-linear mixed-effects modeling based on neural density posterior estimation"
* Sandor Beregi (Imperial College London) "Can we control an epidemic in real-time with noisy data?"
* Richard Creswell (University of Oxford) "A Bayesian nonparametric method for detecting rapid changes in disease transmission"
* Ritabrata Dutta (University of Warwick) "Inference of selection coefficients in multivariate Wright-Fisher: Generalized Bayesian Inference with Signature Kernel Score"
* Richard Everitt (University of Warwick) "Rare event ABC-SMC^2"
* Marina Evangelou (Imperial College London) "Unsupervised Learning approaches for Multi-OMICS data"
* Constandina Koki (University of Warwick) "Bayesian computational analysis of cell division dynamics"
* Elena Sabbioni (Politecnico di Torino) "A Bayesian approach for estimating RNA velocity"
* Jaromir Sant (University of Oxford) "Inferring natural selection and allele age from allele frequency time series data via exact simulation"
* Joseph Shuttleworth (University of Nottingham) "Training models with an ensemble of experimental designs to account for model discrepancy: quantifying uncertainty for predictive models of ion channel currents"
* Robin Thompson (University of Warwick) "Inference of pathogen transmissibility during infectious disease outbreaks"
* Juliette Unwin (Imperial College London) title TBC
* Thijs van der Plas (University of Oxford) "Neural assemblies uncovered by generative modeling explain whole-brain activity statistics and reflect structural connectivity"
* Darren Wilkinson (University of Durham) "Statistical emulation for individual-based models of microbial community dynamics"
* Ruihua Zhang (University of Oxford) "Simulating weak attacks in a new duplication-divergence model with gene loss"
Posters:
* Enrico Bibbona (Politecnico di Torino) "Estimating the ratio between the contagiousness of two viral strains"
* Austin Brown (University of Warwick) "Geometric ergodicity of Gibbs samplers for Bayesian error-in-variable regression"
* Alexander Browning (University of Oxford) "Modelling heterogenity with random parameters"
* Raiha Browning (University of Warwick) "AMISforInfectiousDiseases: an R package to fit a transmission model to a prevalence map"
* Alice Corbella (University of Warwick) “Inference of the case fatality risk at the beginning of an epidemic: a state-space model perspective and a robust particle filter”
* Viktoria Brunner (University of Oxford) "Large-scale Identification of Compensatory Mutations in the RNA Polymerase of Mycobacterium tuberculosis"
* Molly Cui (Kings College London) “Bayesian modelling and sequential learning of latent epidemic dynamics”
* Adam Howes (Imperial College London) "Fast approximate Bayesian inference for small-area estimation of HIV indicators using the Naomi model"
* Owen Jones (Cardiff University) "Estimating the virulence of managed parasite populations"
* Felicia Magpantay (Queen's University at Kingston, Canada), "Challenges in modeling the transmission dynamics of childhood diseases"
* Arnau Quera-Bofurall (University of Oxford) “Bayesian calibration of differentiable simulators”
* Lutecia Servius (King's College London) "Comparing classification methods and their generalisability on antibody repertoire"
* Maria Veretennikova (University of Oxford) "Circadian clock analysis for precision medicine"
* Hiu Ching Yip (Politecnico di Torino) "Modelling lemurs' calls with nearest neighbour Gaussian process"
We are looking forward to seeing you at BioInference2023,
best,
Massimiliano on the behalf of the BioInference Organisers
Ioana Bouros (Oxford); Fergus Cooper (Oxford); Richard Creswell (Oxford); Aden Forrow (Maine); Ben Lambert (Exeter); Chon Lok Lei (Macau); Massimiliano Tamborrino (Warwick); Tom Thorne (Surrey)
------
Dr. Massimiliano Tamborrino
Associate Professor
Department of Statistics
University of Warwick
https://warwick.ac.uk/tamborrino